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Financial Risk Management - Disclosure of Outstanding Derivatives (Detail) - SEK (kr) kr in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Currency Derivatives [member] | Liabilities [member] |  |
Outstanding Derivatives [Line Items] |  |
Outstanding derivatives gross amount recognized | kr (3,361) | kr (1,837)
Outstanding derivatives offset | 29 | 43
Outstanding derivatives net amount presented | (3,332) | (1,794)
Outstanding derivatives related amounts not offset – Collaterals | 3,237 | 873
Net Outstanding derivatives | (95) | (921)
Currency Derivatives [member] | Assets [member] |  |
Outstanding Derivatives [Line Items] |  |
Outstanding derivatives gross amount recognized | 214 | 1,916
Outstanding derivatives offset | (29) | (43)
Outstanding derivatives net amount presented | 185 | 1,873
Outstanding derivatives related amounts not offset – Collaterals | (92) | (1,486)
Net Outstanding derivatives | 93 | 387
Interest Rate Derivatives [member] | Liabilities [member] |  |
Outstanding Derivatives [Line Items] |  |
Outstanding derivatives gross amount recognized | (5) | (22)
Outstanding derivatives offset | 0 | 0
Outstanding derivatives net amount presented | (5) | (22)
Outstanding derivatives related amounts not offset – Collaterals | 0 | 0
Net Outstanding derivatives | (5) | (22)
Interest Rate Derivatives [member] | Assets [member] |  |
Outstanding Derivatives [Line Items] |  |
Outstanding derivatives gross amount recognized | 0 | 0
Outstanding derivatives offset | 0 | 0
Outstanding derivatives net amount presented | 0 | 0
Outstanding derivatives related amounts not offset – Collaterals | 0 | 0
Net Outstanding derivatives | kr 0 | kr 0

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- Definition The amount of cash collateral pledged that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG40D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG40D&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of cash collateral received that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG40D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG40D&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of financial assets set off against financial liabilities when an entity: (a) currently has a legally enforceable right to set off the recognised amounts; and (b) intends either to settle on a net basis, or to realise the asset and settle the liability simultaneously. [Refer: Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The gross amount of recognised financial assets that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_a&doctype=Standard -URIDate 2024-03-27 + Details
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